William K. Oh, is an American medical oncologist, academic and industry leader and expert in the management of genitourinary malignancies, including prostate, renal, bladder and testicular cancers. Oh is Chief Medical Officer for the Prostate Cancer Foundation, the world’s leading philanthropy for prostate cancer. He previously served as CMO for Sema4, a publicly traded genomics and health intelligence company. For 11 years, Oh was Chief of the Division of Hematology and Medical Oncology at The Mount Sinai Medical Center in New York City, Deputy Director at Mount Sinai's NCI-designated Tisch Cancer Institute, Professor of Medicine and Urology and the Ezra M. Greenspan, M.D., Professor in Clinical Cancer Therapeutics at The Icahn School of Medicine at Mount Sinai. Oh is the author of more than 350 articles and 125 abstracts. He is the editor of 6 books and the author of 25 book chapters. He has been listed in Castle Connolly's "America's Top Doctors for Cancer" from 2008 to 2022, "Best Doctors in America" from 2003 to 2022, was listed among New York Magazine's "Top Doctors" from 2010–2022. He continues on the faculty at Mount Sinai as Clinical Professor of Medicine in the Tisch Cancer Institute. Biography Oh was born in South Korea and immigrated to the US as a child. He earned a B.S. from Yale University in 1987 and his M.D. from New York University School of Medicine in 1992. He completed an internship and a residency at Brigham and Women's Hospital in Boston and a clinical fellowship at the Dana–Farber Cancer Institute. From 1997 to 2009, Oh served on the faculty of Harvard Medical School, where he was Associate Professor of Medicine and Clinical Director of the Lank Center for Genitourinary Oncology. In 2009, he joined The Mount Sinai Medical Center as the Ezra M. Greenspan Professor in Clinical Cancer Therapeutics and Professor of Medicine and Urology, as well as Chief of the Division of Hematology and Medical Oncology in Mount Sinai's Department of Medicine. Oh is a leading member of the American Society of Clinical Oncology. He has served on multiple editorial boards including the journals The Prostate, Clinical Genitourinary Cancer, the American Journal of Hematology and Oncology and CA – A Cancer Journal for Clinicians. He co-edited the book Mount Sinai Expert Guides: Oncology which was published in 2019. Oh has been the principal investigator on multiple clinical trials of chemotherapy in castration-resistant (CRPC) prostate cancer